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參數(shù)資料
型號(hào)： LC74950BG
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PBGA96
封裝： 6 X 6 MM, FBGA-96
文件頁(yè)數(shù)： 24/37頁(yè)
文件大?。?/td> 350K
代理商： LC74950BG
LC74950BG
No.A1647-30/37
DC level adjustment specifications
The DC level is adjusted by adding BRADJ[6:0] to the Y signal or RGB signals subjected to gain adjustment
processing.
Non-linear gain adjustment + DC level adjustment
When CNLINE = 1 and BRADJ[6:0]<0x40 (minus), the output corresponding to the input near the saturation region is
made non-linear. When the non-linear gain adjustment parameter (CONPARA) obtained from the formula below is
less than the multiplier (RGB: (32 + GAIN_x[6:0])/64, YCbCr: (48 + GAIN_x[6:0])/64) that is used when the linear
gain is adjusted, the input is multiplied by the non-linear gain adjustment parameter, resulting in a non-linear output.
The non-linear start position and maximum non-linear output value can be adjusted using COFFSET[4:0].
CONPARA = (1023
9-bit video signal) × (64 + COFFSET[4:0])/64 BRADJ[6:0]/2
Similarly, when BNLINE = 1 and BRADJ[6:0]>0x40 (plus), the output corresponding to the input near the saturation
region is made non-linear. When the DC adjustment parameter (BRPARA), obtained from the formula below, is less
than BRADJ[6:0], the extent to which the output is to be non-linear is adjusted by adding the DC adjustment
parameter to the Y signal or RGB signals subjected to non-linear gain adjustment processing.
BRPARA = (127
non-linear gain output/16) × (64 + COFFSET[4:0])/64
The figure below shows the output obtained when the gain adjustment and DC level adjustment have been performed
(when GAIN_Y[6:0] = 63, COFFSET[4:0] = 8).
GAIN_Y=63 (AMP=1.73)
0
200
400
600
800
1000
1200
0
200
400
600
800
1000
1200
INPUT(LSB)
OUTPUT(LSB)
INPUT
CNLINE=0
CNLINE=0, BNLINE=1, BRADJ=64
CNLINE=0, BNLINE=1, BRADJ=0
CNLINE=0, BNLINE=1, BRADJ=127
Input signal
Digital clamp level
Output signal
AMP
DC level adjustment value
Gain adjustment
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LC74950BG-TLM-H 功能描述:視頻模擬/數(shù)字化轉(zhuǎn)換器集成電路 RoHS:否 制造商:Texas Instruments 輸入信號(hào)類型:Differential 轉(zhuǎn)換器數(shù)量:1 ADC 輸入端數(shù)量:4 轉(zhuǎn)換速率:3 Gbps 分辨率:8 bit 結(jié)構(gòu): 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel
LC74980W 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
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